Improvement in the means for adjusting knitting-burrs



6. CAMPBELL. Means for Adj-ust'ing- Knitting Burrs. NOSQB. Patentedluly14,1874.

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IMPROVEMENT IN THE MEANS FOR ADJUSTING KNITTING-BURRS.

Specification forming part of Letters Patent No. 152,968, dated July 14, 1874; application led June 20, 1874.

To all 'whom it may concern.'

Be it known that I, GEORGE CAMPBELL, of Cohoes, in the county of Albany and State of New York, have invented a new and useful Improvement in Knitting- Machines, of which the following is a specification:

My invention consists of the arm which supports the rotating' loop, or stitch adjusting or discharging burr, of a knitting-machine, lit-ted on a vertical screwstud of the perinanent arm, and having a thumb-nut below and a jam-nut above, together with a steady-pin in one of the arms workin g freely through the other, whereby the vertical adjustment of the burr relatively to the needles, and to the other burrs, can be easily and accurately effected, and the .arms bc rigidly and permanently fastened.

Figure l is a sectional elevation ot' my improved adjusting apparatus, and Fig. 2 is a horizontal section taken on line a: of Fig. 1.

Similar letters of reference indicate corresponding parts.

A is the permanent arm 5 B, the adjustable arm carrying' the burr C. D is the screw-stud rising from the permanent arm through the arm B, which has a boss, F, through which the hole for the screw is made, and also a re- .working in arm B.

cess, G, in the under side for the reception of the adj usting-nut H on the screw-stud, the boss being to hold the arm so that it shall not wabble on the screw, and the recess being to allow the armB to drop down on the supporting-arm A. J is a binding-nut 011 the stud above the boss F, to bind the arm B fast after being adjusted by the nut H. K is the steady-pin to preventthe arm B from turning around on the screwstud.

In this example the steady-pin is fixed in arm B, and works in the arm A, but in practice I will have the pin fixed in arm A, and The milled edge of the nut H projects beyond the edges ot' the arm B sufiicieutly to be worked readily.

Having thus described my invention, I clai 1nD as new and desire to secure by Letters Patcnt- The adjustable burr-supporting arm B of a knitting-machine, connected to the stationaryr arm by the stud-screw I), adjusting-nut H, binding-nut J, and steady-pin K, for adjusting and securing it in the manner described.

GEORGE CAMPBELL.

lVitnesses:

CEAS. F. NORTH, CHARLES DUNLAP. 

